koch chemie colourlock leather colour audi lederstandardfarbe Scheibenversiegelung but a simpler formulation than

but a simpler formulation than a specialised sealant shampoo

flaky leather that feels like it's about to break

The MultiStar's alkaline surfactant formula is tuned to dissolve organic grime: grease

Because it plays nicely with rubber and plastic

Both approaches are effective – the difference lies in the visual result and personal preference

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